First of all, it wont accept installation anywhere but Program Data folder, you cannot change this.
Secondly, did install as admin and run as admin, put in SiteAdmin as told and tried 10 times, as soon as I click ok for password popup, the sw stops working and an alert says Microsoft Access has stopped working and closes the app. What is this? My PC is Win7/64, up to date and never has nay problems with normal installations. Even turned off AVG for that. Is this a total waste of time or what? Btw, SoS could not download it and had to do it manually at first, but same file because accompanying readme file says the same things, ie. SiteAdmin, etc.